Chris ArnoldNPR correspondent Chris Arnold is based in Boston. His reports are heard regularly on NPR's award-winning newsmagazines Morning Edition, All Things Considered and Weekend Edition.

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The SawStop saw can sense a slight electrical current that human fingers (and hot dogs) create. When it senses the current, the saw triggers a safety brake, which stops the blade in less than 5/1,000th of a second.
Courtesy of SawStop
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Home Contractors Brace For Lead Paint Rules

The Boston Tea Party of 1773, as depicted in an old engraving. Bostonians dressed as Indians dumped 342 chests of tea overboard from three British ships in protest against "taxation without representation." The famous Tea Party took place at Griffin's Wharf, where the ships were tied up. The site remained a landmark even after the waterfront was filled in, leaving the spot several hundred yards inland.
AP
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No Joke: Housing Market Is On Its Own April 1

U.S. Federal Reserve Chairman Ben Bernanke testifying on Capitol Hill this month about how the U.S. economy still needs the assistance of the Fed. At the end of March, however, the agency plans to stop purchasing mortgage-backed securities.
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